Dell Inspiron 15 (3543, Early 2015) - Manual (Page 80)

7 Lift the connector latch and disconnect the display cable from the system
board.
1 display cable 2 tape
3 connector latch
8 Remove the screws that secure the display hinges to the computer base.
9 Note the antenna-cable routing and remove the cable from the routing
guides on the computer base.
80